FBI memo to Hollywood: If it's not too much trouble, could you please portray our counterterrorism efforts with a bit more realism?

Hoping for an answer in the affirmative, the FBI hosted its first workshop for screenwriters Wednesday at the Federal Building in Westwood.

"FBI -- Crime Essential for Writers" played well with the standing-room-only audience of executives and writers from several major and minor studios. Enthusiastic attendees had more questions than time allowed answers for, and few if any left the four-hour event early.

The FBI, more so than even the Department of Homeland Security, is the primary agency designated to investigate terrorism in the U.S., and the terrorist threat it is most focused on comes from radical Islam, FBI special agent Greg Wing said.

With that in mind, Wing, along with an undercover agent who asked that his identity not be revealed, presented a whirlwind history of Islam, beginning with Sunni-Shiite hostilities in 682 AD....

FBI agents also showed off a map of the 779 real investigations of potential terrorist activity ongoing in Los Angeles and photos of a list of possible targets that included Grauman's Chinese Theatre, the Hollywood sign and Disneyland. They also showed photos of some of the equipment the FBI will have on hand as they stake out the 64th annual Golden Globe Awards on Monday.